Automatic train-stopping apparatus.



FRANK.

AUTOMATIC TRAIN STOPPING APPARATUS.

APPLICATION FILED APR. I7, 1916.

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Patented Dec. 26, 1916.

S. FRANK.

AUTOMATIC TRAIN STOPPING APPARATUS,

APPLICATION man APR. n, 1916.

1,210,298. Patented Dec. 26,1916.

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Specification of Letters Patent? Application filed April 17, 1916...- SerialNo. 91,660..

To (ZZZ 'wlziomit may concern Be it known that 1,.SAMUEL FRANK, a citizen i of the .United States, residing. at Newi York, in the county of New Yorkand State of New. York, have invcntcdnew and. useful and the; brakes applied to bringthe trainto a standstilh I Itis also iny purpose to provide apparatus of the class..-described whereby head-on. and rear end collisions, may be prevented, which will embrace the; desired features of simplicity, eiiiciency and durability, which maybe 1' lIlStttllGdrZl-Dd maintained. at small.- cost and which will operate effectively under. all conditions.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth in and falling within the scope of the claims.

In the accompanying drawings; Figure 1 is a top plan view of a trackway showing the circuit connections. Fig, 2 is a cross sectional view through the same. Fig. 8 is a di agrammatic view of the car carried mechanism. Fig. 1 is a diagrammatic View showing the circuit connections for the station control.

Referring now to the drawings in detail, 1 designates a trackway. In accordance with my present invention, one line of rails of the trackway is provided with short sections 2 that are insulated from the remaining portions of the line of rails as at 8 and suitably spaced apart, Each section 2 is preferably of a length equal to the combined lengths of two ordinary trains and disposed between each section 2 and the adjacent portion of the other line of rails are relatively short contact rails 4 and 5 arranged side by side. Each contact rail 4 is connected to the portions of the line of rails at the opposite ends of the adjacent insulated section 2 by means of conductors 6, while connected to each contact. rail 5. is one terminal of a bat tery 7 or other suitable source of electrical energy, .the othertiminalOf the batter being. connected to the other line of rails by means ofa conductorS.

Patented Dec; '26, 14916,

Depending froineach motor car operating.

over thetrackway are brushes 9, 9 suitably secured to the motor car and adapted to ens gage. the contact: rails 4 ands-5 respectively as thecarpasses suchrails. In thepresent instance, an electric motor .10 is arranged with- 1n the motor car and the armature shaft of such motor. is connected with the engineers bra llev valve lever and the. throttle valve le- Ver,,1nthe event of the apparatus being. 111-- stalled inasteam. locomotive, or with the circuit breaker-1n the/event of the, apparatus being installed in. an: electric locomotive.

The terminals of the motor 10 are connected with the. brushes 9, 9 respectively. through" tolbe energizedl when the motor isoperated In" practice," when atrain passes one of the insulated. sections 2, and enters; the-space between such insulated sections and the next section, the wheels and axles of such train bridge the lines of rails of the trackway 1 and should a second train pass over the insulated section 2 traversed by the first train the brushes of such second train, upon contacting with the plates 4 and 5 respectively, will connect the motor 10 and the lamp 12 in circuit with the battery 7, current flowing from one side of the battery 7, through the plate 5, the brush 9 in engagement with said plate, one of the conductors 11, the lamp 12 and motor 10, the other conductor 11, the plate or contact rail 4, the conductor 6, the portion of the line of rails between the sections 2, the wheels and axles of the car bridging the lines of rails of the track way, and then back to the other side of the battery by way of the other line of rails and the conductor. 8, as clearly shown in Fig. 1 of the drawings.

Leading from each pair of contact rails at and 5 are conductors 13 extending to the signalmans tower and these conductors 13 include a battery 14 and a switch 15. Normally, the switches 15 are open and when the towerman wishes to stop a train at a particular part of the trackway, he closes the switch 15 controlling the contact rails 4 and 5 at such point in the trackway, thereby connecting the rails and 5 with the battery 14 so that the motor and lamp may be energized when the train passes over such rails.

I claim:

1. In automatic train stopping apparatus, the combination with a trackway having one line of rails provided with short sections insulated from the remaining portion of said line of rails and spaced apart, contact rails arranged between each insulated section and he adjacent portion the other line of rails, connections between one of said contact rails and the portion of the line of rails at opposite ends of the adjacent insulated sections, sources of energy each having one side connected to the other line of rails and the other side connected to the other contact rail, and car carried mechanism adapted to be energized from any one of said sources when the car passes over the corresponding contact rails.

2. In automatic train stopping apparatus the combination with a trackway having one line of rails provided with short sections insulated from the remaining portion of said line of rails and spaced apart, con tact rails arranged between each insulated section and the adjacent portion of the other line of rails, connections between one of said contact rails and the portion of the line of rails at opposite ends of the adjacent insulated sections, sources of energy each havmg one side connected to the other line of rails and the other side connected to the other contact rail, car carried mechanism adapted to be energized from any one of said sources when the car passes over the corresponding contact rails, and means for energizing said contact rails independently of said sources.

3. In automatic train stopping apparatus, the combination with a trackway having one line of rails provided with short sec tions insulated from the remaining portion of said line of rails and spaced apart, contact rails arranged between each insulated section and the adjacent portion of the other line of rails, connections between one of said contact rails and the portion of the line of rails at opposite ends of the adjacent insulated section, sources of energy each having one side connected to the other line of rails and the other side connected to the other contact rail, car carried mechanism adapted to be energized from any one of said sources when the car passes over the corresponding contact rails, other sources of energy, connections between said other sources of energy and said contact rails whereby the latter may be energized independently of said first mentioned sources, and switches in said last-named connections respectively.

In testimony whereof I afix my signature.

SAMUEL FRANK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

